CN108570815A - A kind of projection display equipment, washing machine and control method applied to household electrical appliance - Google Patents

Abstract

The present invention belongs to the field of household appliances, and in particular relates to a projection display device, a washing machine and a control method applied to household appliances, including a control device and a plurality of projection devices electrically connected to the control device. Different areas of different areas form projection display areas. The control device controls different projection devices to turn on according to the user's operation to switch the projection display area. Multiple projection devices form multiple projection display areas on household appliances. The operation controls the opening of different projection devices, and the projection content is switched from one projection display area to another projection display area for display, so as to realize the switching of projection display areas. This method can project the projection content to a place that is easier for the user to observe after the user performs an operation. It is more convenient and flexible to use, and the projection content is easy to follow and the user interaction is good.

Description

Projection display device, washing machine and control method applied to household appliances

technical field

The invention belongs to the field of household appliances, and in particular relates to a projection display device, a washing machine and a control method applied to household appliances.

Background technique

At present, the display area of the washing machine is concentrated on the operation panel, which integrates display and operation on components such as program selection, function setting, and display screen. Due to the structure of the washing machine, the installation position and size of the operation panel are limited, the installation position of the operation panel is limited so that the display area is limited, and the size of the operation panel results in a small display area. At present, a display screen is usually used for display. If the area of the display area is increased, the size of the display screen needs to be increased.

Moreover, the current display area is relatively single, and the position cannot be adjusted in real time according to the user's operation. The display area has poor followability, and the user's interactive experience is poor, making it unsuitable for observation in some positions and causing inconvenience to the user.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a projection display device, a washing machine and a control method applied to household appliances. Multiple projection display areas, by controlling the opening of different projection devices, the projection content can be switched and displayed between different projection display areas, the display area is more flexible, diverse and easier to observe, and the projection area can be projected following the user's operation, which is more humane change.

In order to solve the problems of the technologies described above, the present invention adopts the basic idea of technical solution to be:

A projection display device applied to household appliances, comprising a control device and a plurality of projection devices electrically connected to the control device, the plurality of projection devices form projection display areas in different areas of the household appliance, and the control device controls Different projection devices are turned on to switch projection display areas.

Multiple projection devices form multiple projection display areas on household appliances, and the control device controls different projection devices to turn on according to the user's operation, and switches the projection content from one projection display area to another projection display area for projection display, realizing the projection display area. Switching, this method can project the projected content to a part that is easier for the user to observe or project the projected content to a larger space for display after the user performs an operation, which is more convenient to use, more flexible, and has good followability.

A plurality of the above-mentioned projection devices are installed in different parts of the household appliances for projection, forming projection display areas in different areas of the household appliances, and the control device switches different projection devices for projection according to the user's operation, so as to realize switching of the projection display areas.

By setting the projection devices at different positions of the household appliances, the projection devices at different positions project toward different parts of the household appliances, so as to realize the formation of projection display areas at different positions of the household appliances. Better, avoid adding too many components and reduce costs.

The projection device includes a preset projection device that performs projection when the household appliance is turned on. The preset projection device projects to form a preset projection display area. The control device switches to other one or more projection devices for projection according to the user's operation, and the projected The content switches to other projected display areas.

By setting a preset projection device on the household appliance, when the washing machine is turned on, the projection content is projected on the preset projection display area through the preset projection device, which is generally a part that is easier for the user to observe, and the vision is clearer and more convenient for the user operate. When the user performs an operation, the projection device corresponding to the operation is turned on to project the projection content to another projection display area. This area is generally a part with a wider field of view and is easier for the user to observe, and is easier to observe and operate.

The household appliance includes a door cover, the projection device includes a first projection device that projects onto the door cover, and the control device controls the switching between the first projection device and other projection devices according to the user's operation on the door cover, so as to realize the projection of the door cover. switch between the projected display area on the screen and other projected display areas.

Since the door cover of a household appliance has a large area, by setting a projection device corresponding to the door cover, the projected content can be projected on the door cover through the projection device, and displayed on the door cover, which is easier to observe and operate. When the user performs an operation, the control device controls the projection device corresponding to the operation to turn on, forming a projection display area at another part, realizing switching the projection content from the door cover part to other projection display areas, and realizing the projection on the door cover Switching between the display area and the projection display area of other parts.

It also includes a detection device for detecting user operations, the detection device is electrically connected to the control device, the detection device detects the user's operation, and transmits the detection signal to the control device, and the control device controls a plurality of projection devices according to the detection signal Switch between to realize the switching of projection display area;

Preferably, the detection device is an infrared sensor or a switch detection sensor.

By setting the detection device to detect the operation of the user, the automatic control of the projection device is realized, which is more intelligent. The detection device can be an infrared sensor, which controls the opening of the corresponding projection device by sensing the user's operation or the user's operation on the household appliance. Operation (open or close), control the corresponding projection device to open.

A washing machine using the above-mentioned projection display device. Multiple projection devices are arranged in different parts of the washing machine to form projection display areas in different areas of the washing machine. Part switching display.

By arranging the above-mentioned projection display device on the washing machine, a plurality of projection devices are arranged in different parts of the washing machine, so that it can form a projection display area at different positions of the washing machine, such as, the projection device opposite to the door cover is set, and the door cover A projection display area is formed on the screen, a projection device corresponding to the operation panel is arranged, and a projection display area is formed on the operation panel, etc., and the control device controls the opening of the projection device corresponding to the operation performed by the user according to different operations of the user, so that The projection content is switched between different projection display areas (that is, the projection content is presented in different parts of the washing machine), and the projection device is controlled according to the user's operation to display the display content in the projection display areas of different parts, and the human-computer interaction is enhanced. , the user's sense of experience is increased.

The projection display area is located at one or a combination of the door cover, the operation panel, the observation window, the table panel, the inside of the washing machine, and the washing machine box of the washing machine.

The projection display area of the projection device is located on the door cover of the washing machine, the operation panel, the observation window, the table panel, the inside of the washing machine, and the washing machine box, or a combination of several of them. The control device controls different projections according to different operations of the user. When the device is turned on, the projected content is switched between the above-mentioned projection display areas. The above-mentioned structural area of the washing machine is generally relatively large and/or easy to observe, and the observation and use are more humanized.

The projection device includes a first projection device and a second projection device. The projection direction of the first projection device is toward the disk base, and the projection direction of the second projection device is toward the door cover of the washing machine. When the user opens the door cover, the control device controls the first The projection device is turned on, and the projection content is projected onto the disk base, the user closes the door cover, and the second projection device of the control device is turned on, and the projection content is switched to the door cover.

By installing projection devices that project toward the disc base and the door cover respectively, projection display areas can be formed on the door cover and the disc base respectively, and the control device controls the distance between the first projection device and the second projection device according to the user's operation on the door cover. Switching is performed to realize the switching of projected content between the disc base and the door cover, which is more convenient for users to observe, use and operate.

A control method for the above-mentioned washing machine, comprising the following steps:

The washing machine is turned on, and one of the projection devices is turned on to form a first projection display area on the washing machine,

The user performs an operation, and the control device switches to one or more other projection devices for projection according to the user's operation, and switches the display content to other projection display areas.

The control device presets that one of the projection devices is turned on when the washing machine is turned on, and displays the projected content at a position where the user can easily observe. When the user performs an operation, the control device controls the corresponding projection device to turn on according to the user's operation. , to project the projection content to other projection display areas, so as to realize switching of the projection content between different projection display areas.

The control method includes the following steps,

The washing machine is turned on, and one of the projection devices is turned on to form a projection display area on the washing machine,

The user performs an operation, and the detection device detects whether the user opens the door cover, and transmits the detection signal to the control device. If so, the control device controls the opening of the projection device opposite to the disk base, and projects the projection content on the disk base;

If not, the control device controls the projection device opposite to the door cover to be turned on to project the projection content onto the door cover.

The detection device detects whether the door cover is opened, and transmits the detection information to the control device. The control device controls the opening of different projection devices according to the operation of the door cover by the user, and switches the display content between the door cover and the disk base for easy observation and operation.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: multiple projection devices form multiple projection display areas on household appliances, and the control device controls different projection devices to be turned on according to the user's operation, and the projection content is changed from One projection display area is switched to other projection display areas for display to realize the switching of projection display areas. This method can project the projection content to a part that is easier for the user to observe or project the projection content to a larger space after the user performs an operation. Display, more convenient and more flexible to use.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute improper limitations to the present invention. Apparently, the drawings in the following description are only some embodiments, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts. In the attached picture:

FIG. 1 is a schematic structural diagram of a projection display device of the present invention;

Fig. 2 is a schematic flow chart of the control method of the present invention;

Fig. 3 is a schematic flow chart of the second control method of the present invention.

Among the figure: 100, projection device 101, first and second projection device 102, second projection device 200, control device 300, detection device 600, door cover 601, dish seat 603, detergent box cover 700, control key.

It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present invention in any way, but illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

Embodiment one:

As shown in Figures 1-3, a projection display device applied to home appliances includes a control device 200 and a plurality of projection devices 100 electrically connected to the control device 200, and the plurality of projection devices 100 form projections in different areas of the home appliance. Display area, multiple projection display areas are switched to realize the switching display of projection content in different projection display areas, the control device 200 controls different projection devices 100 to turn on according to the user's operation, and switches the projection content from one projection display area to Another projection display area is displayed to realize switching of the projection display area.

Projecting by the projection device can be understood as turning on the projection device and performing projection.

A plurality of projection devices 100 are installed in different parts of the household appliances, and the projection devices 100 are projected towards different positions of the household appliances to form projection display areas in different areas of the household appliances. The user performs different operations, and the control device 200 performs different operations according to the user's operations. The control is switched to turn on the corresponding projection device 100, and the previously turned on projection device 100 is turned off, and the projection content is switched from one projection display area to another projection display area for display, thereby realizing switching of the projection display area.

Wherein, the formed multiple projection display areas may also be formed by the multiple projection devices 100 located in the same area respectively projecting towards different directions.

Further, a plurality of the above-mentioned projection devices are respectively installed in different parts of the household appliance for projection, and projection display areas are formed in different areas of the household appliance, and the control device switches different projection devices for projection according to the user's operation, so as to realize the projection display area switch.

Specifically, a plurality of the above-mentioned projection devices are respectively arranged in different parts of the household appliance, and projections performed by the plurality of projection devices respectively will form multiple projection display areas in different parts or different areas of the household appliance. The projection device of the part corresponding to the operation is selected for projection, and the unselected projection devices are generally turned off.

If the user has turned on another projection device before the operation, the projection content is switched to the projection device corresponding to the user's operation through the user's operation, so that the projection content enters the current projection display area from the previous projection display area come up.

For example, the projection device includes a preset projection device that performs projection when the household appliance is turned on, the preset projection device projects to form a preset projection display area, and the control device switches to one or more other projection devices for projection according to the user's operation, Switch the projected content to another projected display area.

If the user performs another operation after the above operation, the control device controls the projection device corresponding to the other operation to turn on, so as to realize switching from one projection display area to another display area.

Wherein, a projection display area can be obtained by turning on one projection device for projection, or can be formed by multiple projection devices for projection simultaneously.

Further, the household appliance includes a door cover 600, the projection device 100 includes a first projection device 101 for projecting onto the door cover 600, and the control device 200 controls the first projection device 101 and other The projection devices 100 are switched to realize switching between the projection display area on the door cover 600 and other projection display areas.

For example, the user closes the door cover 600, the control device 200 controls the opening of the first projection device 101 opposite to the door cover, and projects the projection content onto the door cover 600, the user closes the door cover 600, and the control device 200 controls other projection devices 100 to open , the first projection device 101 opposite to the door cover is closed, and the projected content is switched from the door cover 600 to another projection display area for display.

Furthermore, the projection display device further includes a detection device 300 for detecting user operations, the detection device 300 is electrically connected to the control device 200, the detection device 300 detects the user's operation, and transmits the detection signal to the control device 200, so The control device 200 controls switching among multiple projection devices 100 according to the detection signal, so as to realize switching of projection display areas.

The detection device 300 can be an infrared sensor, which is used to detect the operation performed by the user within the detection range of the infrared sensor, and can also be provided with a plurality of projection display areas facing different directions, so that the user can operate in the projection display area, and the control device controls different The projection device 100 is turned on.

The detection device 300 can also be a switch detection sensor, such as a door body control switch is set between the door cover and the disc seat, when the user operates the door cover 600, the door body control switch action is triggered, and the signal is transmitted to the control device 200 to control different Switch between projection devices 100 .

For household appliances equipped with infrared sensors, the user's operation can be detected through the infrared sensor, and the signal can be transmitted to the control device;

If the infrared sensor is not used on the household appliance, a switch sensor can be added to detect the user's operation information, such as a door switch on the door cover, a detergent box switch on the detergent box cover, and the like.

The household appliances include washing machines, dishwashers or refrigerators.

The home appliance is a washing machine. Multiple projection devices 100 are installed in different parts of the washing machine. The multiple projection devices 100 form projection display areas in different areas of the washing machine. The control device 200 switches the projection device 100 on according to the user's operation, so that the projection content can be displayed on the washing machine. Switch display between different areas.

The projection display area of the projection device 100 is located in one or a combination of the door cover 600, the operation panel, the observation window, the countertop, the inside of the washing machine, and the washing machine box.

Embodiment two:

As shown in Figures 1-3, this embodiment is a further limitation of Embodiment 1. The projection device 100 includes a preset projection device 100 that performs projection when the household appliance is turned on, and forms a preset projection display on a certain part of the household appliance. area, the user performs an operation, and the control device 200 switches to other one or more projection devices 100 to start projection according to the user's operation, and switches the projected content to other projection display areas.

Users can perform operations in the preset projection display area. For example, the preset projection display area is located on the control panel of a household appliance. The user can operate while observing the display content on the control panel, and the user can also perform operations on other structures or components. , if the preset projection display area is located on the door cover 600 of the household appliance, the user operates on the control panel to switch the projection device 100 in different positions.

Specifically, a first projection device 101 and a second projection device 102 corresponding to user operations are installed on the household appliance, the first projection device 101 is turned on to form a first projection display area, and the second projection device 102 is turned on to form a second projection display area. area, the control device 200 presets that the first projection device 101 is turned on when the home is turned on, and the projected content is projected to the first projection display area for display. Close, switch the projection content from the first projection display area to the second projection display area for display.

Wherein, the first projection display area can also be located on the operation panel or the observation window or the table panel of the household appliance or the internal or external panel of the household appliance; the second projection display area can also be located on the operation panel or the observation window or the table of the household appliance Panels or interior or exterior panels of household appliances.

Further, the household appliance includes a movable part and a connecting part connected with the movable part, the movable part can move relative to the connecting part, and the user's operation is to operate the movable part. The household appliance is provided with a first projection device 101 and a second projection device 102, and the control device 200 presets that the first projection device 101 is turned on when the household appliance is turned on, and the display content is projected on the first projection display area, and the user moves the movable part , the detection device 300 detects the user's operation and transmits the detection signal to the control device 200, and the control device 200 controls the second projection device 102 to turn on according to the detection signal, and switches the display content to the second projection display area for display.

Specifically, the washing machine includes a door cover 600 and a disc seat 601 for installing the door cover 600. A first projection device 101 and a second projection device 102 are installed on the washing machine. The projection direction of the first projection device 101 is opposite to the door cover 600. , the projection direction of the second projection device 102 is opposite to the disk seat 601. When the washing machine is turned on, the first projection device 101 is turned on, and the displayed content is projected onto the door cover 600. When the user opens the door cover 600, the detection device 300 detects that the user opens the door cover 600 The detection signal is transmitted to the control device 200 , and the control device 200 controls the second projection device 102 to turn on according to the detection signal, and switches the display content to the disk base 601 .

Different from the above-mentioned control method, the first projection device 101 and the second projection device 102 with different projection directions are installed on the household appliance, the first projection device 101 is turned on to form the first projection display area, and the second projection device 102 is turned on to form the second projection In the display area, the user performs the first operation. The detection device 300 detects that the user performs the first operation and transmits the detection signal to the control device 200. The control device 200 controls the first projection device 101 to turn on, and projects the projection content to the first projection display area. , the user performs the second operation, the detection device 300 detects that the user performs the second operation and transmits the detection signal to the control device 200, the control device 200 controls the second projection device 102 to be turned on, the first projection device 101 is to be turned off, and the projection content is transferred from the second projection device A projection display area is switched to a second projection display area for display.

Further, the household appliance includes a movable part and a connecting part connected with the movable part. The household appliance is provided with a first projection device 101 and a second projection device 102. The first projection device 101 projects to form a first projection display area, and the second projection device The device 102 is projected to form a second projected display area, the user moves the movable part to the first position, the detection device 300 detects that the user moves the movable part to the first position and transmits the detection signal to the control device 200, and the control device 200 according to the signal Control the first projection device 101 corresponding to this operation to turn on, project the display content on the first projection display area, the user moves the movable part to the second position, the detection device 300 detects that the user moves the movable part to the second position and The detection signal is transmitted to the control device 200, and the control device 200 controls the second projection device 102 corresponding to the operation to turn on, the first projection device 101 to turn off, and switch the display content to the second projection display area according to the detection signal.

Further, the household appliance is a washing machine, and the first projection device 101 and the second projection device 102 are arranged inside the washing machine;

Furthermore, the first projection device 101 and the second projection device 102 are arranged on the tray base 601 of the washing machine; they are arranged inside the tray base 601 of the washing machine.

Specifically, the washing machine includes a door cover 600 and a disc seat 601 for installing the door cover 600. A first projection device 101 and a second projection device 102 are installed on the washing machine. The projection direction of the first projection device 101 is opposite to the door cover 600. , the projection direction of the second projection device 102 is opposite to the disc base 601, and the detection device detects whether the user opens the door cover, and if the user closes the door cover 600, the control device 200 controls the first projection device 101 to open, and projects the displayed content to the door cover 600 Above, if the user opens the door cover 600 , the control device 200 controls the second projection device 102 to be turned on, the first projection device 101 to be turned off, and the display content is switched to the disk base 601 .

Embodiment three:

As shown in Figures 1-3, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that the washing machine in this embodiment includes an operable control key 700, and the user operates on the control key 700 to transmit the signal to The control device 200, the control device 200 controls the projection device 100 corresponding to the operation to be turned on for projection display according to the operation of the user, so as to realize switching of projection display areas.

For example, household appliances include control keys. The user selects a program or function through the control key 700, and the control device 200 controls the projection device 100 corresponding to the pressed program or function to start for projection display. The user changes the program or function through the control key 700, and controls The device 200 controls the selected projection device 100 corresponding to the program or function to be turned on for projection display, so as to realize switching of the projection display area.

Embodiment Four

As shown in Figure 2, control method one:

A method for controlling the above-mentioned washing machine, comprising the following steps:

The washing machine is turned on, the preset projection device 100 is turned on to form a preset projection display area,

The user performs an operation, and the control device 200 switches to one or more other projection devices 100 for projection according to the user's operation, and switches the display content to other projection display areas.

As shown in Figure 3, another control method 2 of a washing machine:

A control method for a washing machine includes the following steps,

The washing machine is turned on,

The user performs an operation, and the detection device 300 detects whether the user opens the door cover 600, and transmits the detection signal to the control device 200. If the user opens the door cover 600, the control device 200 controls the opening of the projection device opposite to the disk base 601, and projects the projection content. on the tray base 601;

If the user closes the door cover, the control device 200 controls the projection device opposite to the door cover 600 to open to project the projected content onto the door cover 600 .

Wherein, when the washing machine is turned on, one of the projection devices may also be turned on to form a projection display area on the washing machine, and other steps remain unchanged.

Further, when the door cover is opened, another detection device for detecting whether the user opens and detects the detergent box can be further provided, and the detection device is electrically connected with the controller. If the user opens the detergent box, the control and washing The projection device 100 corresponding to the detergent box is turned on, and the projected content is projected onto the detergent box cover 603. If the user does not open the detergent box, the control device controls the projected device 100 opposite to the disk base to project, and the projected content is projected onto the detergent box cover 603. 601 on the plate base.

The above-mentioned another detection device for detecting whether the user opens and detects the detergent box may be an infrared sensor or a switch detection sensor. For household appliances equipped with infrared sensors, the user's operation can be detected through the infrared sensor, and the signal can be transmitted to the control device;

If the infrared sensor is not used on the household appliance, a switch sensor can be added to detect the user's operation information, such as the box switch set on the detergent box cover and so on.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes. In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (10)

1. a kind of projection display equipment applied to household electrical appliance, which is characterized in that including control device and with control device electricity Multiple projection arrangements of connection, multiple projection arrangements form projected display region, the control in the different zones of household electrical appliance Device controls different projection arrangements and opens depending on the user's operation, carries out the switching of projected display region.

2. a kind of projection display equipment applied to household electrical appliance according to claim 1, which is characterized in that multiple described Projection arrangement be separately positioned on the different parts of household electrical appliance and projected, it is aobvious to form projection in the different zones of household electrical appliance Show that region, control device switch different projection arrangements and projected depending on the user's operation, realizes cutting for projected display region It changes.

3. a kind of projection display equipment applied to household electrical appliance according to claim 2, which is characterized in that projection arrangement It is included in the default projection arrangement projected when household electrical appliance are opened, it is aobvious that the default projection device forms default projection Show region, control device switches to other one or more projection arrangements and projected depending on the user's operation, by project content It switches on other projected display regions.

4. according to a kind of any projection display equipments applied to household electrical appliance of claim 1-3, which is characterized in that institute It includes door closure to state household electrical appliance, and the projection arrangement includes the first projection arrangement projected to door closure, control device according to Operation of the user to door closure is controlled and is switched between the first projection arrangement and other projection arrangements, realizes the projection on door closure The switching of display area and other projected display regions.

5. according to a kind of any projection display equipments applied to household electrical appliance of claim 1-4, which is characterized in that also Include the detection device for detecting user's operation, the detection device is electrically connected with control device, the detection device detection Detection signal is passed to control device by the operation of user, and the control device controls multiple projection arrangements according to detection signal Between switch, realize the switching of projected display region；

Preferably, the detection device is infrared sensor or is closing detection sensor.

6. a kind of washing machine using any projection display equipments of claim 1-5, which is characterized in that multiple projection dresses The different parts in washing machine are installed, form projected display region in the different zones of washing machine, control device is according to user Operation switching projection arrangement open, realize project content washing machine different parts switch display.

7. washing machine according to claim 6, which is characterized in that the projected display region be located at washing machine door closure, One or several kinds of combinations in operation panel, observation window, deck plate, the inside of washing machine, casing of washing machine.

8. the washing machine described according to claim 6 or 7, which is characterized in that the projection arrangement include the first projection arrangement and Second projection arrangement, the projecting direction of the first projection arrangement towards disk seat, wash by the projecting direction direction of second projection arrangement Clothing gate lid, user open door closure, and control device controls the first projection arrangement and opens, project content is projected on disk seat, uses Door closure is closed at family, and the second projection arrangement of control device is opened, project content is switched on door closure.

9. a kind of control method of washing machine as described in claim 6-8 is any, which is characterized in that include the following steps：

Washing machine is opened, and a projection arrangement in projection arrangement is opened, and projected display region is formed on washing machine,

User implements operation, and control device switches to other one or more projection arrangements and projected depending on the user's operation, Display content is switched on other projected display regions.

10. control method according to claim 9, which is characterized in that include the following steps,

Washing machine is opened, and a projection arrangement in projection arrangement is opened, and projected display region is formed on washing machine,

User implements operation, and whether detection device detection user opens door closure, and detection signal is passed to control device, if It is that control device controls the projection arrangement opposite with disk seat and opens, and project content is incident upon on disk seat；

It is opened if not, control device controls the projection arrangement opposite with door closure, project content is projected on door closure.